Backflow prevention breathing machine

Abstract

The anti-backflow breathing machine comprises a main machine, a water tank and an ultrasonic atomization piece, and an air outlet of the main machine is connected with an air outlet pipe; the water tank is mounted on the air outlet pipe, and a first through hole communicated with the air outlet pipe is formed in the water tank; the ultrasonic atomization sheet is arranged at the communication position of the first through hole and the air outlet pipe and connected to the water tank and the air outlet pipe. The anti-backflow breathing machine has a standby state and a humidifying state, and when the anti-backflow breathing machine is in the standby state, the ultrasonic atomization sheet blocks the first through hole; in the humidifying state, the ultrasonic atomization piece is used for atomizing liquid in the water tank and enabling the liquid to flow to the air outlet pipe. According to the anti-backflow breathing machine, the problem of how to atomize is solved through the ultrasonic atomization piece, the ultrasonic atomization piece has certain sealing performance, a special sealing structure does not need to be arranged, and the ultrasonic atomization piece can rotate along with the water tank, so that the first through hole can be sealed at any angle; and the problems caused by backward flowing or backflow of the liquid in the water tank are solved.

Description

Technical Field

[0001] This application relates to the field of ventilator technology, and in particular to an anti-backflow water tank and a ventilator. Background Technology

[0002] A ventilator is a medical device suitable for mild to moderate chronic obstructive pulmonary disease (COPD), neuromuscular / amyotrophic lateral sclerosis (ALS), obesity-related hypoventilation, Chernobyl respiration, and other conditions. The ventilator consists of a main unit and a water tank. During operation, the main unit's fan draws in air, which then flows through the water tank before exiting. In this field, the liquid in the water tank is typically heated to humidify the airflow, increasing the humidity of the inhaled air and thus improving comfort and the user's breathing experience.

[0003] However, existing water tanks can cause backflow or backflow when tilted or rotated, causing the liquid inside the tank to flow outwards or back into the ventilator. Utility Model Content

[0004] Therefore, it is necessary to provide an anti-backflow ventilator to address the backflow or backflow problem that occurs when the water tank is tilted or rotated.

[0005] An anti-backflow ventilator, the anti-backflow ventilator comprising:

[0006] The main unit, the air outlet of which is connected to an air outlet pipe;

[0007] A water tank is installed on the vent pipe, and the water tank is provided with a first through hole communicating with the vent pipe;

[0008] An ultrasonic atomizing plate is disposed at the connection between the first through hole and the air outlet pipe, and is connected to the water tank and the air outlet pipe;

[0009] The anti-backflow ventilator has a standby state and a humidification state. When in the standby state, the ultrasonic atomizing plate blocks the first through hole; when in the humidification state, the ultrasonic atomizing plate is used to atomize the liquid in the water tank and flow it to the air outlet tube.

[0010] In one embodiment, a transducer cover plate is further provided between the water tank and the air outlet pipe and connected to the water tank and the air outlet pipe. The transducer cover plate is provided with a flow channel communicating with the first through hole and the air outlet pipe. The inner wall of the flow channel is provided with a mounting part for installing the ultrasonic atomizing plate.

[0011] In one embodiment, the end face of the transducer cover near the water tank has a groove that communicates with the flow channel and extends along the length of the flow channel, the groove forming the mounting portion.

[0012] In one embodiment, the transducer cover plate is provided with a wire hole for the wiring harness of the ultrasonic atomizing sheet to pass through, and the wire hole is in communication with the mounting part.

[0013] In one embodiment, the exhaust pipe is provided with a mounting base connected to the transducer cover plate, and the mounting base is provided with a second through hole connecting the exhaust pipe and the flow channel.

[0014] In one embodiment, a locking member is also included, which passes through the mounting base, the transducer cover, and is connected to the water tank;

[0015] The locking element is provided in multiple ways, and the multiple locking elements are arranged circumferentially around the flow channel.

[0016] In one embodiment, a seal is also included, which is sandwiched between the mounting base and the transducer cover.

[0017] In one embodiment, the mounting base is provided with a first limiting groove on the side near the transducer cover, and the transducer cover is provided with a second limiting groove on the side near the mounting base. The sealing element is partially disposed in the first limiting groove and partially disposed in the second limiting groove.

[0018] In one embodiment, a temperature and humidity sensor is also included, which is disposed on the air outlet pipe and located on the side of the air outlet pipe opposite to the air outlet of the host.

[0019] In one embodiment, a support frame connected to the water tank is also included, the support frame being connected to the vent pipe.

[0020] The aforementioned anti-backflow ventilator has an outlet tube connected to the main unit's outlet. The end of the outlet tube facing away from the main unit faces the user, allowing the main unit to provide the necessary airflow. A water tank is installed on the outlet tube, and an ultrasonic nebulizer seals the first opening of the water tank. When the anti-backflow ventilator is working, the ultrasonic nebulizer atomizes the liquid in the water tank, allowing the atomized liquid-air mixture to flow into the outlet tube, thus humidifying the airflow within the outlet tube. When the anti-backflow ventilator is in standby mode and not working, the ultrasonic nebulizer seals the first opening, separating the water tank from the outlet tube and preventing backflow of liquid from the water tank.

[0021] The anti-backflow ventilator of this application not only solves the problem of how to nebulize by using an ultrasonic nebulizer, but also, because the ultrasonic nebulizer itself has a certain degree of sealing, by connecting the ultrasonic nebulizer to the water tank, the first through hole is sealed by the sealing performance of the ultrasonic nebulizer itself, without the need to set up a special sealing structure. Even if the air outlet tube causes the water tank to tilt or rotate, the ultrasonic nebulizer can rotate with the water tank, thus sealing the first through hole at any angle, solving the problem caused by liquid backflow or backflow in the water tank. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the anti-backflow ventilator provided in an embodiment of this application.

[0023] Figure 2 This is a schematic diagram of the structure of a water tank installed on an air outlet pipe, as provided in an embodiment of this application.

[0024] Figure 3 An exploded view of the water tank and vent pipe provided in an embodiment of this application.

[0025] Figure 4 This is a schematic diagram of the structure of the water tank provided in an embodiment of this application.

[0026] Figure 5 A cross-sectional view of a water tank installed on an air outlet pipe, as provided in an embodiment of this application.

[0027] Figure 6 A cross-sectional view of a water tank connected to a mounting base via a transducer cover plate, as provided in an embodiment of this application.

[0028] In the picture:

[0029] 100. Host computer;

[0030] 200. Exhaust pipe;

[0031] 300. Water tank; 310. Tank body; 311. First through hole; 320. Cover;

[0032] 400. Ultrasonic atomizing sheet; 410. Wire harness;

[0033] 500. Transducer cover plate; 510. Flow channel; 520. Mounting part; 530. Cable hole;

[0034] 600, Mounting base; 610, Second through hole;

[0035] 700. Seals;

[0036] 800. Temperature and humidity sensor;

[0037] 900. Support frame. Detailed Implementation

[0038] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0039] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0040] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0044] This application provides an anti-backflow ventilator, such as Figures 1 to 6 As shown, the anti-backflow ventilator includes a main unit 100, a water tank 300, and an ultrasonic nebulizer 400. The air outlet of the main unit 100 is connected to an air outlet tube 200. The water tank 300 is installed on the air outlet tube 200, and the water tank 300 is provided with a first through hole 311 communicating with the air outlet tube 200. The ultrasonic nebulizer 400 is located at the connection between the first through hole 311 and the air outlet tube 200, and is connected to the water tank 300 and the air outlet tube 200. The anti-backflow ventilator has a standby state and a humidification state. When in the standby state, the ultrasonic nebulizer 400 blocks the first through hole 311. When in the humidification state, the ultrasonic nebulizer 400 is used to atomize the liquid in the water tank 300 and flow it to the air outlet tube 200.

[0045] The aforementioned anti-backflow ventilator has an outlet tube 200 connected to the outlet of the main unit 100. The end of the outlet tube 200 facing away from the main unit 100 is directed towards the user, allowing the main unit 100 to provide the necessary airflow. A water tank 300 is installed on the outlet tube 200. An ultrasonic nebulizer 400 seals the first through-hole 311 of the water tank 300. When the anti-backflow ventilator is working, the ultrasonic nebulizer 400 atomizes the liquid in the water tank 300, allowing the atomized liquid-air mixture to flow into the outlet tube 200, thus humidifying the airflow within the outlet tube 200. When the anti-backflow ventilator is in standby mode and not working, the ultrasonic nebulizer seals the first through-hole 311, separating the water tank 300 from the outlet tube 200 and preventing backflow of liquid from the water tank 300.

[0046] The anti-backflow ventilator of this application not only solves the problem of how to atomize by using the ultrasonic nebulizer 400, but also, because the ultrasonic nebulizer 400 itself has a certain degree of sealing, by connecting the ultrasonic nebulizer 400 to the water tank 300, the first through hole 311 is sealed by the sealing performance of the ultrasonic nebulizer 400 itself, without the need to set up a special sealing structure. Even if the air outlet tube 200 causes the water tank 300 to tilt or rotate, the ultrasonic nebulizer can rotate with the water tank 300, so that the first through hole 311 can be sealed at any angle, thus solving the problem caused by the backflow or backflow of liquid in the water tank 300.

[0047] Specifically, such as Figures 2 to 4 As shown, the water tank 300 includes a tank body 310 and a cover 320. The cover 320 is fastened to the tank body 310, and a first through hole 311 is provided on the tank body 310.

[0048] Specifically, such as Figures 2 to 6 As shown, the anti-backflow ventilator also includes a transducer cover plate 500 located between the water tank 300 and the outlet tube 200, and connected to both. The transducer cover plate 500 has a flow channel 510 connecting the first through hole 311 and the outlet tube 200. The inner wall of the flow channel 510 has a mounting portion 520 for mounting the ultrasonic nebulizer plate 400. By providing the transducer cover plate 500 and the flow channel 510, the liquid in the tank 310 is first atomized through the first through hole 311 in the working area of ​​the ultrasonic nebulizer. The atomized gas-liquid mixture then flows into the outlet tube 200 through the flow channel 510. The mounting portion 520 on the inner wall of the flow channel 510 facilitates the installation of the ultrasonic nebulizer plate 400.

[0049] More specifically, such as Figures 2 to 6 As shown, the first through hole 311 and the flow channel 510 are arranged along the arrangement direction of the water tank 300 and the air outlet pipe 200, for example in... Figure 5 and Figure 6 In the middle, the water tank 300 and the air outlet pipe 200 are arranged vertically, and the first through hole 311 and the flow channel 510 are arranged vertically.

[0050] Specifically, such as Figures 2 to 6 As shown, the transducer cover 500 has a groove on its end face near the water tank 300, which communicates with the flow channel 510 and extends along the length of the flow channel 510. This groove forms a mounting portion 520. The end face of the transducer cover 500 near the water tank 300, as shown... Figure 6From the perspective of the transducer cover plate 500, a downwardly extending groove is provided on the upper end surface, and the groove is connected to the flow channel 510, thereby forming the mounting part 520. When installing the ultrasonic atomizing plate 400 and the water tank 300, the ultrasonic atomizing plate 400 is first placed in the mounting part 520, then the transducer cover plate 500 and the first through hole 311 of the tank body 310 are aligned, and finally the transducer cover plate 500 is connected to the tank body 310.

[0051] Specifically, such as Figures 2 to 6 As shown, the transducer cover plate 500 is provided with a wire hole 530 for the passage of the wiring harness 410 of the ultrasonic atomizing plate 400, and the wire hole 530 is connected to the mounting part 520. By providing the wire hole 530 on the transducer cover plate 500, it is convenient for the wiring harness 410 of the ultrasonic atomizing plate 400 to pass through.

[0052] Specifically, such as Figures 2 to 6 As shown, the outlet pipe 200 is provided with a mounting base 600 connected to the transducer cover plate 500. The mounting base 600 has a second through hole 610 connecting the outlet pipe 200 and the flow channel 510. In order to facilitate the connection between the transducer cover plate 500 and the outlet pipe 200, the mounting base 600 is provided on the outlet pipe 200, so that the second through hole 610 of the mounting base 600 and the flow channel 510 of the transducer cover plate 500 are connected. The gas-liquid mixture atomized by the ultrasonic atomizing plate 400 flows into the outlet pipe 200 through the flow channel 510 and the second through hole 610 in sequence, thereby humidifying the airflow in the outlet pipe 200.

[0053] More specifically, such as Figure 5 and Figure 6 As shown, the flow channel 510 and the second through hole 610 are arranged along the arrangement direction of the water tank 300 and the air outlet pipe 200, that is, the first through hole 311, the flow channel 510 and the second through hole 610 are arranged in the vertical direction.

[0054] Specifically, the anti-backflow ventilator also includes locking components that pass through the mounting base 600, the transducer cover 500, and are connected to the water tank 300. Multiple locking components are arranged circumferentially around the flow channel 510. By sequentially passing the locking components through the mounting base 600, the transducer cover 500, and connecting them to the water tank 300, the outlet tube 200, the ultrasonic nebulizer 400, and the water tank 300 are connected. The multiple locking components arranged circumferentially around the flow channel 510 improve the installation stability of the ultrasonic nebulizer 400.

[0055] Specifically, such as Figures 3 to 6As shown, the anti-backflow ventilator also includes a seal 700, which is sandwiched between the mounting base 600 and the transducer cover 500. By providing the seal 700 between the mounting base 600 and the transducer cover 500, the gap between the mounting base 600 and the transducer cover 500 is sealed, reducing the problem of the atomized gas-liquid mixture or the airflow in the outlet tube 200 leaking to the outside through the gap between the mounting base 600 and the transducer cover 500.

[0056] More specifically, such as Figures 3 to 6 As shown, the mounting base 600 has a first limiting groove on the side near the transducer cover plate 500, and the transducer cover plate 500 has a second limiting groove on the side near the mounting base 600. The sealing element 700 is partially disposed within the first limiting groove and partially within the second limiting groove. By providing the first limiting groove on the mounting base 600 and the second limiting groove on the transducer cover plate 500, the sealing element 700 is positioned within both grooves, thereby limiting the installation position of the sealing element 700 and preventing it from wobbling between the mounting base 600 and the transducer cover plate 500.

[0057] Specifically, please return to the reference. Figure 1 The anti-backflow ventilator also includes a temperature and humidity sensor 800, which is located on the outlet tube 200, on the side of the outlet tube 200 away from the outlet of the main unit 100. By placing the temperature and humidity sensor 800 on the side of the outlet tube 200 away from the outlet of the main unit 100, the temperature and humidity of the airflow at the outlet end of the outlet tube 200 can be detected to determine whether the temperature and humidity of the current airflow meet the preset requirements.

[0058] It should be noted that the outlet end of the air outlet pipe 200 refers to the end from which air is discharged from the air outlet pipe 200, that is, the end of the air outlet pipe 200 away from the air outlet of the main unit 100, and the inlet end of the air outlet pipe 200 refers to the end from which air is received from the air outlet pipe 200, that is, the end from which the air outlet pipe 200 is connected to the air outlet of the main unit 100.

[0059] It should be noted that the preset requirements for the airflow temperature and humidity at the outlet end of the air outlet pipe 200 are set according to the actual operation requirements.

[0060] Specifically, please return to the reference. Figure 1 The anti-backflow ventilator also includes a support frame 900 connected to the water tank 300, and the support frame 900 is connected to the air outlet tube 200. By setting the support frame 900 on the air outlet tube 200, it is convenient to place the water tank 300 on the support frame 900, which further improves the support stability of the water tank 300.

[0061] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A backflow prevention ventilator, characterized in that, The backflow prevention ventilator includes: The host (100) has an air outlet connected to an air outlet pipe (200); A water tank (300) is installed on the air outlet pipe (200), and the water tank (300) is provided with a first through hole (311) communicating with the air outlet pipe (200); An ultrasonic atomizing plate (400) is disposed at the connection between the first through hole (311) and the air outlet pipe (200), and is connected to the water tank (300) and the air outlet pipe (200); The anti-backflow ventilator has a standby state and a humidification state. When in the standby state, the ultrasonic nebulizer (400) blocks the first through hole (311). When in the humidification state, the ultrasonic nebulizer (400) is used to atomize the liquid in the water tank (300) and flow it to the air outlet tube (200).

2. The anti-backflow ventilator according to claim 1, characterized in that, It also includes a transducer cover plate (500) disposed between the water tank (300) and the air outlet pipe (200) and connected to the water tank (300) and the air outlet pipe (200). The transducer cover plate (500) is provided with a flow channel (510) connecting the first through hole (311) and the air outlet pipe (200). The inner wall of the flow channel (510) is provided with a mounting part (520) for mounting the ultrasonic atomizing plate (400).

3. The anti-backflow ventilator according to claim 2, characterized in that, The transducer cover plate (500) has a groove on the end face near the water tank (300) that communicates with the flow channel (510) and extends along the length of the flow channel (510), the groove forming the mounting portion (520).

4. The anti-backflow ventilator according to claim 2, characterized in that, The transducer cover plate (500) is provided with a wire hole (530) for the wire harness (410) of the ultrasonic atomizing plate (400) to pass through, and the wire hole (530) is connected to the mounting part (520).

5. The anti-backflow ventilator according to claim 2, characterized in that, The outlet pipe (200) is provided with a mounting base (600) connected to the transducer cover plate (500), and the mounting base (600) is provided with a second through hole (610) connecting the outlet pipe (200) and the flow channel (510).

6. The anti-backflow ventilator according to claim 5, characterized in that, It also includes a locking element that passes through the mounting base (600), the transducer cover (500) and is connected to the water tank (300); The locking element is provided in multiple ways, and the multiple locking elements are arranged circumferentially around the flow channel (510).

7. The anti-backflow ventilator according to claim 5, characterized in that, It also includes a seal (700) sandwiched between the mounting base (600) and the transducer cover (500).

8. The anti-backflow ventilator according to claim 7, characterized in that, The mounting base (600) has a first limiting groove on the side near the transducer cover plate (500), and the transducer cover plate (500) has a second limiting groove on the side near the mounting base (600). The sealing element (700) is partially located in the first limiting groove and partially located in the second limiting groove.

9. The anti-backflow ventilator according to claim 1, characterized in that, It also includes a temperature and humidity sensor (800), which is disposed on the air outlet pipe (200) and located on the side of the air outlet pipe (200) away from the air outlet of the host (100).

10. The anti-backflow ventilator according to claim 1, characterized in that, It also includes a support frame (900) connected to the water tank (300), the support frame (900) being connected to the vent pipe (200).

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